... Hotline: 1900.7012 Thy Lấ PHM THNH (https://www.facebook.com/thanh.lepham) Cõu 1: ( thi THPT Quc gia 2017- M 201) Cho 9,2 gam hn hp X gm Mg, Fe vo dung dch AgNO3 v Cu(NO3)2 , thu c cht rn Y (gm kim ... 8, Gii h : x=0,15 ; y=0,03, z=0,07 %Fe 56.(0, 03 0, 07) 60,87% 9, Cõu : ( thi THPT Quc gia 2017 M 201) Hn hp E gm ba peptit mch h: ipeptit X, tripeptit Y, tetrapeptit Z cú t l mol tng ng ... (https://www.facebook.com/thanh.lepham) s mol N cú 319 gam mui l 4,115+0,015=4,13 mol %N= 4,13.14 18,125% 319 Cõu 10 ( th nghim 2017) Nung hn hp X gm a mol Mg v 0,25 mol Cu(NO3)2, sau mt thi gian, thu c cht rn Y v 0,45 mol hn...